题目内容

用 I have been doing 或I have done 填空。 You meet somebody who is a writer. You ask: How many books ___________ (you/write)?

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用 I have been doing 或I have done 填空。 A friend of yours is saving money to go on a world trip. You ask: How long ________ (you/save) money?

用 I have been doing 或I have done 填空。 A friend of yours is saving money to go on a world trip. You ask: How much money ________ (you/save)?

用 I have been doing 或I have done 填空。 Some friends of yours are having a party next week. You ask: How many people _____________ (you /invite)?

有下列函数调用语句，函数fun1()的实参个数是（）。fun1(a+b,y*x,fun2(y,n,k));

A. 3
B. 4
C. 5
D. 6